厚泥岩复合顶板煤巷围岩控制技术研究

doi:10.13722/j.cnki.jrme.2016.0072

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摘要针对首山一矿11061工作面运输平巷厚泥岩复合顶板强度低、无稳定承载结构、顶板下沉量大的问题，通过监测巷道围岩破坏及离层发育，统计巷道破坏具体形式，分析得出复杂应力条件下厚泥岩复合顶板巷道破坏的力学机制。基于普氏拱理论，结合现场具体支护和破坏状况，提出“预应力锚杆+锚索承载结构，配合原生裂隙区域注浆加固”的改进支护方案：预应力锚索(杆)形成的主、次承载结构协同作用，在两承载层间的泥岩顶板形成压缩区限制离层发展；布置倾斜锚索与垂直锚索，限制巷道顶帮角处围岩塑性区扩展，防止锚索锚固点所在岩层破断失去承载能力。依据塑性圈理论和数值模拟等手段，确定锚杆、锚索等具体支护参数，利用分区注浆加固泥岩强烈膨胀与松动破坏区域。数值模拟和现场工程实践的结果表明：与原支护方案对比，改进的支护方案巷道变形量减少约50%，巷道围岩完整程度明显提高，有效地控制了厚泥岩复合顶板变形与破坏。

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	张俊文1
	袁瑞甫2
	李玉琳1

关键词 ：采矿工程, 复杂应力场, 厚泥岩复合顶板, 主次承载结构, 巷道支护, 锚索角度

Abstract：The headgate of 11061 longwall face in Shoushan No.1 coal mine had the problems of low strength of thick mudstone compound roof, unstable bearing structure and the big deformation of roof. By monitoring on propagation of failure and separation of surrounding rock and counting failure model of the headgate，the failure mechanism of roadway with thick mudstone compound roof and complex stress distribution were gotten. Based on the compressive arch theory and in-site supporting and failure condition, an improved supporting method which is pre-stressed bolts and cables as the main bearing structure combined with grouting reinforcement in fissile zone was proposed. Pre-stressed cables and bolts built the primary and secondary bear structure. The separation of compound roof seam would be limited and the plastic range developing around the roof corner would be decreased. The detail parameters of cables and bolts were decided by the plastic ring theory and numerical method. The comparing results between the improved supporting method and former supporting method showed that: the deformation decreased 50% in the improved supporting method, the stability of the headgate?s surrounding rock enhanced obviously and the large deformation and failure in thick mudstone compound roof were well controlled.

Key words： mining engineering complex stress field thick mudstone compound roof primary and secondary bearing structures roadway support angle of cable mounted

引用本文:

张俊文1，袁瑞甫2，李玉琳1. 厚泥岩复合顶板煤巷围岩控制技术研究[J]. 岩石力学与工程学报, 2017, 36(1): 152-158.
ZHANG Junwen1，YUAN Ruifu2，LI Yulin1. Research on surrounding rock control of coal roadway with thick mudstone compound roof. , 2017, 36(1): 152-158.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2016.0072 或 http://www.rockmech.org/CN/Y2017/V36/I1/152

[2]	严红，何富连，徐腾飞. 深井大断面煤巷双锚索桁架控制系统的研究与实践[J]. 岩石力学与工程学报，2012，31(11)：2 248-2 557. (YAN Hong，HE Fulian，XU Tengfei. Study of double-cable-truss controlling system forlarge section coal roadway of deep mine and its practice[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(11)：2 248-2 557.(in Chinese))
[5]	张国锋，于世波，李国锋，等. 巨厚煤层三软回采巷道恒阻让压互补支护研究[J]. 岩石力学与工程学报，2011，30(8)：1 619-1 626. (ZHANG Guofeng，YU Shibo，LI Guofeng，et al. Research on complementary supporting system of constant resistance with load release for three-soft mining roadways in extremely thick coal seam[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(8)： 1 619-1 626.(in Chinese))
[7]	卜庆为. 新桥矿厚泥岩顶板回采巷道锚杆支护技术研究[硕士学位论文][D]. 包头：内蒙古科技大学，2014.(BU Qingwei. Study of bolting support technology for mining gateway with thick mudstone roof in Xinqiao coal mine[M. S. Thesis][D]. Baotou：Lnner Mongolia University of Science and Technology，2014.(in Chinese)) " target="_blank">
[8]	钱鸣高，石平五，邹喜正，等. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2003：78.(QIAN Minggao，SHI Pingwu，ZOU Xizheng，et al. Mining pressure and strata control[M]. Xuzhou：China University of Mining and Technology Press，2003：78.(in Chinese)) " target="_blank">
[3]	余伟健，王卫军，文国华，等. 深井复合顶板煤巷变形机理及控制对策[J]. 岩土工程学报，2012，34(8)：1 501-1 508.(YU Weijian，WANG Weijun，WEN Guohua，et al. Deformation mechanism and control technology of coal roadway under deep well and compound roof[J]. Chinese Journal of Geotechnical Engineering，2012，34(8)：1 501-1 508.(in Chinese))
[9]	张国华，张雪峰，蒲文龙，等. 复合顶板离层分析与预应力锚杆支护参数确定[J]. 辽宁工程技术大学学报：自然科学版，2010，21(9)：182-186.(ZHANG Guohua，ZHANG Xuefeng，PU Wenlong，et al. Analysis of complex roof separation and parameters determination of prestressed bolt supporting[J]. Journal of Liaoning Technical University：Natural Science，2010，21(9)：182-186.(in Chinese))
[11]	肖同强，李化敏，杨建立，等. 超大断面硐室围岩变形破坏机理及控制[J]. 煤炭学报，2014，39(4)：631-636.(XIAO Tongqiang，LI Huamin，YANG Jianli，et al. Deformation and failure mechanism of surrounding rock in chamber with super large section and its control[J]. Journal of China Coal Society，2014，39(4)：631-636.(in Chinese))
[14]	谷拴成，樊琦，王建文，等. 层状岩体巷道顶板冒落拱高度计算方法研究[J]. 煤炭工程，2010，(12)：73-76.(GU Shuancheng，FAN Qi，WANG Jianwen，et al. Study on calculation method of Layered rock mass of roadway roof caving arch height[J]. Coal Engineering，2010，(12)：73-76.(in Chinese)) " target="_blank">
[1]	黄宏伟，车平. 泥岩遇水软化微观机理研究[J]. 同济大学学报：自然科学版，2007，35(7)：866-870.(HUANG Hongwei，CHE Ping. Research on micro-mechanism of softening and argillitization of mudstone[J]. Journal of Tongji University：Natural Science，2007，35(7)：866-870.(in Chinese))
[15]	沈明荣，陈建峰. 岩体力学[M]. 上海：同济大学出版社，2007：175-176.(SHEN Mingrong，CHEN Jianfeng. Rockmass mechanics[M]. Shanghai：Tongji University Press，2007：175-176.(in Chinese)) " target="_blank">
[4]	张农，侯朝炯，王培荣. 深井三软煤巷锚杆支护技术研究[J]. 岩石力学与工程学报，1999，18(4)：437-440.(ZHANG Nong，HOU Chaojiong，WANG Peirong. On bolting supporting of roadway in deep mine’s soft coal seam[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(4)：437-440.(in Chinese))
[6]	严红，何富连，王思贵. 特大断面巷道软弱厚煤层顶板控制对策及安全评价[J]. 岩石力学与工程学报，2014，33(5)：1 014-1 023. (YAN Hong，HE Fulian，WANG Sigui. Safety control and evaluation of roadway with super-large cross-section and soft-weak thick coal roof [J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(5)：1 014-1 023.(in Chinese))
[10]	陈立伟，彭建兵，范文，等. 基于统一强度理论的非均匀应力场圆形巷道围岩塑性区分析[J]. 煤炭学报，2007，32(1)：20-23.(CHEN Iiwei，PENG Jianbing，FAN Wen，et al. Analysis of surrounding rock mass plastic zone of round tunnel under non-uniform stress field based on the unified strength theory[J]. Journal of China Coal Society，2007，32(1)：20-23.(in Chinese))
[12]	康红普，王金华，林健，等. 煤矿锚杆支护理论与成套技术[M]. 北京：煤炭工业出版社，2007：73-75.(KANG Hongpu，WANG Jinhua，LIN Jian，et al. Rock bolting theory and complete technology for coal roadways[M]. Beijing：China Coal Industry Publishing House，2007：73-75.(in Chinese)) " target="_blank">
[13]	侯朝炯. 巷道围岩控制[M]. 徐州：中国矿业大学出版社，2013：69-71.(HOU Chaojiong. Road surrounding rock control[M]. Xuzhou：China University of Mining and Technology Press，2013：69-71.(in Chinese)) " target="_blank">